TIMELINE-Mass shooting incidents in last 20 years

Aug. 5 (Reuters) - Here is a timeline of some of the worstshooting incidents carried out by one or two gunmen around theworld in the last 20 years:

March 13, 1996 - BRITAIN - Gunman Thomas Hamilton burstsinto a primary school in the Scottish town of Dunblane andshoots dead 16 children and their teacher before killinghimself.

April 28, 1996 - AUSTRALIA - Martin Bryant unleashes modernAustralia's worst mass murder when he shoots dead 35 people atthe Port Arthur tourist site in the southern state of Tasmania.

April 1999 - UNITED STATES - Two heavily armed teenagers go on a rampage at Columbine High School in Littleton, Denver,shooting 13 students and staff before taking their own lives.

July 1999 - UNITED STATES - A gunman kills nine people attwo brokerages in Atlanta, after apparently killing his wife andtwo children. He commits suicide five hours later.

June 2001 - NEPAL - Eight members of the Nepalese Royalfamily are killed in a palace massacre by Crown Prince Dipendrawho later turns a gun on himself and dies few days later. Hisyoungest brother also died later, raising the death toll to 10.

April 26, 2002 - GERMANY - In Erfurt, eastern Germany,19-year-old Robert Steinhauser opens fire after saying he wasnot going to take a math test. He kills 12 teachers, asecretary, two pupils and a policeman at the GutenbergGymnasium, before killing himself.

October 2002 - UNITED STATES - John Muhammad and Lee Malvokills 10 people in sniper-style shooting deaths that terrorizethe Washington DC area.

Nov. 21, 2004 - UNITED STATES - Six people are killed whenChai Soua Vang, a 35-year-old Hmong immigrant and naturalizedU.S. citizen, shoots eight people while deer hunting east ofBirchwood in northern Wisconsin. A truck driver from St. Paul,Minn., Vang is sentenced to six consecutive life terms inprison.

March 12, 2005 - UNITED STATES - Seven people are killed andfour wounded when Terry Michael Ratzmann opens fire at a LivingChurch of God service at the Sheraton Hotel in Brookfield,Wisconsin. Ratzmann, a 44-year-old computer technician, thecommits suicide.

April 16, 2007 - UNITED STATES - Virginia Tech, a universityin Blacksburg, Virginia, becomes site of the deadliest rampagein U.S. history when a gunman kills 32 people and himself.

Oct. 7, 2007 - UNITED STATES - Six people are killed and onewounded when Sheriff's Department Deputy Tyler James Petersongoes on a shooting rampage at his ex-girlfriend's apartment, inCrandon, Wisconsin. Peterson, 20, then shot and killed himself.

Nov. 7, 2007 - FINLAND - Pekka-Eric Auvinen kills six fellowstudents, the school nurse, the principal and himself with ahandgun at the Jokela High School near Helsinki.

Sept. 23, 2008 - FINLAND - Student Matti Saari opens fire ina vocational school in Kauhajoki in northwest Finland, killingnine other students and one male staff member before killinghimself.

March 11, 2009 - GERMANY - A 17-year-old gunman dressed incombat gear kills nine students and three teachers at a schoolnear Stuttgart. He also kills one other person at a nearbyclinic. He was later killed in a shoot-out with police. Twoadditional passers-by were killed and two policemen seriouslyinjured, bringing the death toll to 16, including the gunman.

June 2, 2010 - BRITAIN - Gunman Derrick Bird opens fire onpeople in towns across the rural county of Cumbria. Twelvepeople are killed and 11 injured. Bird also killed himself.

Jan. 8, 2011 - UNITED STATES - Then-U.S. congresswomenGabrielle Giffords is target of an assassination attempt inArizona in which six people are killed and 13 wounded. A personfamiliar with the case said this month that Jared Loughner, theman accused of the killings and wounding Giffords, is set toplead guilty in a Tucson court on Tuesday.

April 9, 2011 - NETHERLANDS - Tristan van der Vlis openedfire in the Ridderhof mall in Alphen aan den Rijn, south ofAmsterdam, killing six before turning the gun on himself.

July 22, 2011 - NORWAY - Police seize a gunman who killed 69people at a youth summer camp of Norway's ruling politicalparty, on the small, holiday island of Utoeya. Anders BehringBreivik is later charged with the killings, as well as with anearlier bombing in Oslo which killed eight people. The trialended last month with Breivik saying that his bombing andshooting rampage was necessary to defend the country - promptinga walk-out by relatives of his victims.

Dec. 13, 2011 - BELGIUM - Gunman Nordine Armani kills threepeople, including a 17-month-old toddler, and wounds 121 in acentral square in the eastern city of Liege, before shootinghimself. The next day Belgian investigators find the body of awoman in warehouse used by the gunman raising the death toll,including the killer, to five.

Feb. 27, 2012 - UNITED STATES - A student opens fire in acafeteria at Chardon High School in Ohio, killing three studentsand injuring two others before being arrested.

April 2, 2012 - UNITED STATES - A gunman, identified bypolice as Korean-American One Goh, kills seven people and woundsthree others in a shooting rampage at a Christian college inOakland. The former nursing student pleaded not guilty to murderand attempted murder charges.

July 20, 2012 - UNITED STATES - A masked gunman kills 14people and wounds 50 others when he opens fire on moviegoers ata showing of new Batman film "The Dark Knight Rises" in Aurora,a suburb of Denver, Colorado.

Aug. 5, 2012 - UNITED STATES - A gunman shoots six peopledead during Sunday services at a Sikh temple in Oak Creek,Wisconsin, before he is shot dead by a police officer.